ABS Light Due to Brake System Control Unit Failure on GMC Envoy

The Anti-lock brake system (ABS) control unit may fail internally causing the ABS warning light to illuminate.

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Average mileage: 105,744 (11,000–150,000)
4 model years affected: 1998, 2003, 2004, 2005 more
13 people reported this problem
8 people shared problem details
2005 GMC Envoy92,000
Check brake system light on, ABS light on, audible warning; brakes seem to work fine but not sure if ABS still enabled.
5 people like thisFlag inappropiate
1 person likes thisFlag inappropiate
2005 GMC Envoy80,000
abs light comes on sporadically when applying brakes. also feel a pumping sensation in pedal and a noise at same time which causes volt meter to temporarily begin discharging. unknown cause to problem. taking to mechanic for diagnosis.
1 person likes thisFlag inappropiate
2005 GMC Envoy127,000
ABS light come's 0n when driving on ice in 4 wheel drive.
1 person likes thisFlag inappropiate
2005 GMC Envoy117,000
My abs light is on
2005 GMC Envoy114,448
Abs and brake lights on. Can't figure outnidsye
ABS light and brake light stay lit up
ABS light and loud auditory warning whenever I drive the vehicle. We have replaced one of the ABS sensors on the front passenger wheel, since beating needed to be replaced to pass inspection. Still didn't help problem.
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